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1055234331 = 33192056987
BaseRepresentation
bin111110111001011…
…001100100011011
32201112121110101000
4332321121210123
54130114444311
6252413200043
735102225634
oct7671314433
92645543330
101055234331
114a171a198
12255490023
1313a808c18
14a020888b
1562992056
hex3ee5991b

1055234331 has 16 divisors (see below), whose sum is σ = 1645590400. Its totient is φ = 666463464.

The previous prime is 1055234329. The next prime is 1055234347. The reversal of 1055234331 is 1334325501.

1055234331 is a `hidden beast` number, since 105 + 523 + 4 + 3 + 31 = 666.

It is not a de Polignac number, because 1055234331 - 21 = 1055234329 is a prime.

It is a super-2 number, since 2×10552343312 = 2227038986642035122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1055234295 and 1055234304.

It is not an unprimeable number, because it can be changed into a prime (1055234311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027981 + ... + 1029006.

It is an arithmetic number, because the mean of its divisors is an integer number (102849400).

Almost surely, 21055234331 is an apocalyptic number.

1055234331 is a deficient number, since it is larger than the sum of its proper divisors (590356069).

1055234331 is a wasteful number, since it uses less digits than its factorization.

1055234331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057015 (or 2057009 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1055234331 is about 32484.3705649348. The cubic root of 1055234331 is about 1018.0824961483.

Adding to 1055234331 its reverse (1334325501), we get a palindrome (2389559832).

The spelling of 1055234331 in words is "one billion, fifty-five million, two hundred thirty-four thousand, three hundred thirty-one".

Divisors: 1 3 9 19 27 57 171 513 2056987 6170961 18512883 39082753 55538649 117248259 351744777 1055234331